@inproceedings{Shen2018ReinforcedSN,
  title = {Reinforced Self-Attention Network: a Hybrid of Hard and Soft Attention for Sequence Modeling},
  author = {Tao Shen and Tianyi Zhou and Guodong Long and Jing Jiang and Sen Wang and Chengqi Zhang},
  booktitle = {IJCAI},
  year = {2018}
}